diff --git a/pkgs/by-name/ox/oxidized/package.nix b/pkgs/by-name/ox/oxidized/package.nix
index 046add730c65..78ab4a5998c2 100644
--- a/pkgs/by-name/ox/oxidized/package.nix
+++ b/pkgs/by-name/ox/oxidized/package.nix
@@ -3,17 +3,8 @@
   ruby,
   bundlerApp,
   bundlerUpdateScript,
+  defaultGemConfig,
   nixosTests,
-  libssh2,
-  pkg-config,
-  openssl,
-  cmake,
-  libgit2,
-  icu,
-  which,
-  file,
-  zlib,
-  libyaml,
 }:
 
 bundlerApp {
@@ -27,43 +18,7 @@ bundlerApp {
     "oxs"
   ];
 
-  gemConfig = {
-    rugged = attrs: {
-      buildInputs = [
-        pkg-config
-        cmake
-      ];
-      nativeBuildInputs = [
-        pkg-config
-        cmake
-      ];
-      propagatedBuildInputs = [
-        libssh2
-        openssl
-        libgit2
-      ];
-
-      dontUseCmakeConfigure = true;
-      buildFlags = [ "--with-ssh" ];
-    };
-
-    charlock_holmes = attrs: {
-      buildInputs = [
-        icu
-        zlib
-      ];
-      nativeBuildInputs = [
-        which
-        pkg-config
-        file
-      ];
-    };
-
-    psych = attrs: {
-      buildInputs = [ libyaml ];
-      nativeBuildInputs = [ pkg-config ];
-    };
-  };
+  gemConfig = defaultGemConfig;
 
   passthru = {
     tests = nixosTests.oxidized;
diff --git a/pkgs/development/ruby-modules/gem-config/default.nix b/pkgs/development/ruby-modules/gem-config/default.nix
index e746c32fe896..c4adafb51c8e 100644
--- a/pkgs/development/ruby-modules/gem-config/default.nix
+++ b/pkgs/development/ruby-modules/gem-config/default.nix
@@ -1039,6 +1039,7 @@ in
       zlib
     ];
     dontUseCmakeConfigure = true;
+    buildFlags = [ "--with-ssh" ];
   };
 
   sassc = attrs: {